Kenwood KDC-203-S, KDC-209-S Service manual

CD RECEIVER

KDC- 203S/209S

SERVICE MANUAL

VISTEON GENUINE

2001-3 PRINTED IN JAPAN B51-7780-00 (4) 0

KDC-203S

COMPACT

DIGITAL AUDIO

PWR OFFLOUD SCAN RDM REP

Refer to KDC-316S’s information of the service manual "KDC-316S/316V/37MR" (B51-7700-00) for KDC-203S/209S’s information except the following parts.

∗

New Parts

Parts without Part No. are not supplied.

Ref. No. Parts No. Description

KDC-203S/209S

704 3C∗A64-2439-01 PANEL (704 but a service part)

207 3C 207 3C

B10-4094-01 FRONT GLASS K2

∗

B10-4095-01 FRONT GLASS K3

∗

SWITCH UNIT (X13- or X16-)

301 2C B11-1327-04 OPTICAL DIFFUSER 301 2C B11-1333-14 OPTICAL DIFFUSER

PL1 ,2 B30-1485-05 LAMP PL1 ,2 B30-1543-05 LAMP PL1 ,2 B30-1513-05 LAMP

ED1 B38-1061-05 LIQUID CRYSTAL ED1 B38-1062-05 LIQUID CRYSTAL

C5 CK73EB1C225K CHIP C 2.2UF K

R12 RK73FB2A102J CHIP R 1.0K J 1/10W R13 RK73FB2A470J CHIP R 47 J 1/10W

IC2 RS-171 ANALOGUE IC

ELECTRIC UNIT (X25-)

R138

IC4 TDA7384A ANALOGUE IC

RK73GB1J473J CHIP R 47K J 1/16W

40Wx4

AUD

AUTO

AME

CRSC

ADJ

PARTS LIST

Destination

K2 K3

K2 K2 K3

K2 K3

K2 K2

K2 : KDC-209S K3 : KDC-203S

Ref. No. Parts No. Description

KDC-203S/209S do not include the following parts.

PA1 3C PANEL ASSY AC1 2D CORD WITH PINPLUG

- INSULATING COVER

C8 ,9 CHIP C R20 CHIP R D18 ,19 LED

CN2 PIN ASSY J4 CYLINDRICAL RECEPTACLE J5 PIN JACK C221-224 ELECTRO C225,226 CHIP C C401,402 ELECTRO C403 ELECTRO C404 CHIP C R137 CHIP R R170 RD R171 RD R221-224 RD R225-228 RD R229-232 RD R401,402 RD R403 RD R404 RD R405-409 RD R410,411 RD R412-414 CHIP R D401,402 ZENER DIODE D403,404 ZENER DIODE D409-411 ZENER DIODE Q40 DIGITAL TRANSISTOR Q221-224 DIGITAL TRANSISTOR

KDC-209S

COMPACT

DIGITAL AUDIO

SWITCH UNIT (X13- or X16-)

ELECTRIC UNIT (X25-)

40Wx4

AUD

AUTO

PWR OFFLOUD SCAN RDM REP

AME

CRSC

ADJ

Destination

CD RECEIVER

KDC-316S/316V/37MR

SERVICE MANUAL

B51-7700-00(S) 1530

● KDC-316S

Knob(RELEASE) (K24-3665-04)

Knob(VOL) (K25-1256-03)

Front glass

(B10-3291-01:316S) Knob(EJ) (K24-3653-04)

Mounting hardware assy (J21-9641-03)

(B10-3292-01:37MR)

(B10-3293-01:316V)

KDC-316S

COMPACT

DIGITAL AUDIO

Panel assy

(A64-2199-02:316S) (A64-2200-02:37MR) (A64-2201-02:316V)

Knob(1-6) (K25-1253-03)

Remote controller assy (A70-0883-05)

M. RDM

Plastic cabinet assy (A02-1486-13)

PWR OFFLOUD SCAN RDM REP

Knob(Q) (K24-3652-04)

45Wx4

AUD

AUTO

AME

Knob(FM/AM) (K25-1255-03)

CRSC

ADJ

Knob(CLK) (K25-1254-03)

DC cord (E30-4783-05)

Screw set (N99-1632-05)

Screw set (N99-1610-15)

Lever (D10-4589-04)

Stay (J54-0606-04)

KDC-316S/316V/37MR

BLOCK DIAGRAM

KDC-316S/316V/37MR

COMPONENT DESCRIPTION

●SWITCH UNIT(X13-9880-XX)

Ref.No. Component Name Application/Function Operation/Condition/Compatibility

IC1 LC75853NE LCD driver Ready on key-matrix IC2 RS-171 Remote control light sensor Q1 DTA114EK or KRA102S or key-matrix permission SW Ready on key-matrix, ON when the base goes "Lo"

UN2111

●ELECTRIC UNIT(X25-8690-XX)

Ref.No. Component Name Application/Function Operation/Condition/Compatibility

IC1 UPD780058GC231 System µ-COM. IC2 TDA7407D E-VOL. & N.C. MPX IC4 TDA7386 Power IC IC7 BA4911-V4 Power supply IC IC8 HD74HC27FP Mute gate IC 3 input NOR gate x3 IC11 S-80830ANNP RESET IC Detection voltage 3.0V IC12

Q10 2SC4081 or 2SD1819A B.U. detection Detect BU voltage Q20 2SC4081 or 2SD1819A ACC detection Detect ACC voltage Q40 DTA124EUA or UN5112 PREOUT mute driver Mutes when base is "Lo" (controls Q221-224) Q50 2SA1036K SW 5V ON when the base is "Lo". Q51 UMC2N SW 14V ON when the base is "Hi" (controls Q55) Q53 UMC2N Switch for power supply IC ON when the base is "Hi" (controls SW1 pin of power

Q55 2SD2375 or 2SD2396 AVR for SERBO +B Output issued when SW14V is on (base is "Hi") Q70 2SC4081 or 2SD1819A SURGE detection Detect SURGE voltage Q101 2SC4081 or 2SD1819A DSI SW DSI LED turns ON when base is "Hi" Q102 DTA114YUA or UN5114 PANEL 5V SW ON when the base is "Lo" Q221-224 Q251 DTC114YUA or UN5214 Power IC SVR SW Turns ON when base is "Hi" and capacitor on SVR

BR24C01AF or BR24C01AF-W M24C01-WMN6T or S-24C01B

DTC143TUA or UN5216 PREOUT MUTE Mute applied to PREOUT (output) when base is "Lo"

E2PROM

supply IC)

pin discharges

KDC-316S/316V/37MR

MICROCOMPUTER'S TERMINAL DESCRIPTION

●Terminal Description

Pin Function I/O Description Processing Operation

1 AV CONT O A/D converter reference voltage control output ”Hi”: ON / ”Lo”: OFF 2 IC2 TYPE0 I IC2 setting terminal ”Lo”: Initial value 3 IC2 TYPE1 I IC2 setting terminal ”Lo”: Initial value 4 AVSS - Ground connection terminal connected to GND 5 M MUTEL I Muting request from the MICOM. of CD mecha. ”Lo”: Mute request 6 N.C O Not used 7 AVREF1 I D/A converter reference voltage input 8 ILLUMI O Illumination AVR ON/OFF control output ”Hi”: AVR ON

9 L RES O Reset output to the LCD driver IC ”Lo”: Reset 10 PANEL I Panel open/close detection input ”Lo”: Panel closed 11 L DATAL I Data input from the LCD driver IC 12 L DATAS O Data output to the LCD driver IC 13 L CLK O Clock output to the LCD driver IC 14 N.C O Not used 15 N.C O Not used 16 CH-DATAC I Data input from changers 17 CH-DATAH O Data output to changers 18 CH-CLK I/O Clock input/output with changers 19 L CE O CE output to the LCD driver IC ”Hi”: Active 20 N.C O Not used 21 M RST O Reset output to the MICOM. of CD mecha. ”Lo”: Reset 22 M STOP O Stop request to the MICOM. of CD mecha. ”Lo”: Stop 23 MOSW O CD mechanism loading motor control output ”Hi”: Loading & Eject / ”Lo”: other 24 PLL SCL O Clock output to the tuner pack 25 AM+B O AM+B control ”Hi”: during AM reception 26 FM+B O FM+B control ”Hi”: during FM reception 27 M-SCL I/O Clock input/output with the MICOM. of CD mecha. 28 DSI O DSI output ”Hi”: LED ON 29 LO/EJ I/O CD mecha.Loading/Eject switching output ”Lo”: Loading / ”Hi”: Eject 30 SW3 I Down & limit switch detection input ”Hi”: Chucking / ”Lo”: Pickup most inner position 31 R DATA I Data input from RDS decoder 32 R QUAL I Quality input from RDS decoder 33 VSS1 - Ground connection terminal connected to GND 34 SD I SD input from the tuner pack ”Hi”: Station detected 35 IC2 SCL O Clock output to the E-VOL. IC 36 M-SDA I/O Data input/output with the MICOM. of CD mecha. 37 PLL SDA I/O Data input/output with the tuner pack 38 IC2 SDA I/O Data input/output with the E-VOL. IC 39 MUTE O Mute control output ”Hi”: Mute ON / ”Lo”: Mute OFF 40 N.C O Not used 41 AFC O AFC control output ”Lo”: during FM seek 42 CH-REQH O Request output to changers ”Lo”: Request 43 CH-CON O Changer control ”Lo”: Standby / ”Hi”: ON 44 N.C O Not used 45 P MUTE O Power IC mute control ”Lo”: Mute 46 SVR O Power lC reset terminal When the momentary power down, after ACC

47 STBY O Power IC standby control output ”Hi”: POWER ON mode 48 P CON O Power control ”Hi”: POWER ON mode except ALL OFF mode 49 P ANT O Antenna control ”Hi”: during FM/AM reception 50 BEEP O BEEP sound output 51 ACC DET I ACC detection input ”Hi”: ACC OFF / ”Lo”: ACC ON 52 BU DET I Momentary power down detection input ”Hi”: When momentary power down detected

53 N.C O Not used

OFF/ON is detected and after POWER ON/ OFF, the output goes ”Hi” temporarily.

or BU OFF / ”Lo”: BU ON

KDC-316S/316V/37MR

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin Function I/O Description Processing Operation

54 N.C O Not used 55 N.C O Not used 56 SW5 O SW 5V control ”Lo”: POWER ON mode 57 P ON O 58 TYPE2 I Destination type input terminal 2 59 N.C O Not used 60 RESET I Reset input terminal ”Lo”: System reset 61 REMO I Data input from the remote control light sensor 62 R CLK I Clock input from RDS decoder 63 CH-REQC I Request input from changers ”Hi”: Request 64 SW1 I Loading detection ”Lo”: CD chucking 65 KEY-REQ I Key request terminal ”Lo”: Request 66 SW2 I 12cm disc detection terminal ”Lo”: 12cm disc 67 VSS0 - Ground connection terminal connected to GND 68 VDD1 - VDD connection terminal 69 X2 - Main clock resonator connection terminal 70 X1 I Main clock resonator connection terminal 71 IC(TEST) - Not used connected to GND 72 XT2 - Sub clock resonator connection terminal N.C. 73 N.C I Sub clock resonator connection terminal connected to BU5V lines 74 VDD0 - VDD connection terminal 75 AVREF0 I A/D converter reference voltage input 76 SMETER I S-meter input from the tuner pack 77 PHONE I PHONE detection input 78 NOISE I Noise detection input 79 TYPE0 I Destination type input terminal 0 80 TYPE1 I Destination type input terminal 1

Microprocessor peripheral power supply control terminal

”Hi”: ACC ON or during CD Loading/Eject

1V or less: TEL MUTE,2.5V or greater: NAVI MUTE

ADJUSTMENT

Test Mode

1. How to enter test mode

While holding the FM key and preset 6 key, reset the unit. All display segments light up when the test mode is entered.

2. How to exit from test mode

Reset the unit. The test mode is not terminated by turning ACC off, power off, momentary power down or panel detaching.

3. Test mode specifications of CD receiver

•Pressing the Track Up key jumps to tracks in the following sequence: No.9→No.15→No.10→No.11→No.12→No.13→No.14→No.9 (Repeats the cycle)

•Pressing the Track Down key jumps to the track immediately before the track being played.

•Pressing Preset 1 key jumps to track No. 28.

•Forced ejection is not provided.

4. Test mode specifications of cassette receiver

•Blank skip (B.S) is off.

•Pressing the ATT key ejects the cassette.

5. Audio functions

•Pressing the AUDIO key or the OPEN/CLOSE key on the remote controller initiates the Audio mode.

•In the Audio adjustment mode, the Seek Up/Down keys on the remote controller can only be pressed shortly. (They cannot be held depressed.)

•The volume is –10 dB (which is displayed as “30”).

•LOUDNESS is OFF.

•The Bass/Treble Up/Down and Balance/Fader Up/Down

buttons function as full-boost/full-cut and full-front/full-rear respectively.

6. Menu mode

•Pressing the CLK or the DNPP key on the remote controller initiates the Menu mode.

•In the Menu mode, the Seek Up/Down keys on the remote controller can only be pressed shortly . (They cannot be held depressed.)

•With the models incorporating RDS, the first operation in the menu becomes local seek.

7. Version and operating hours display

•The following table shows the key operations and resulting display information.

Key Operation Display Pressing Preset 1 Version (Date and time display) Pressing Preset 3 CD (or TAPE with C/R models)

operating hours

Pressing Preset 5 CD (or TAPE with C/R models)

ejection count

•Holding Preset 3 while the operating hour information is displayed clears it.

•Holding Preset 5 while the ejection count information is displayed clears it.

Adjustment Mode

Adjustable items

1: Stereo Decoder Subaddress: 9 2: Configuration Subaddress: D

Default values

If they are not written in the EEPROM, the default values specified by the IC developer are set in IC2-3.

Adjustment procedure

1: Enter the IC2-3 Adjustment mode by resetting the unit while

holding d + h. 2: Select the TUNER source by pressing SRC. 3: When the adjustment mode is entered, the display shows a

2-digit hex number. 4: When preset a or s is recalled, the setting values

corresponding to the pressed number are displayed. (The

displayed values are those in the RAM.) 5: Vary each setting value using 4 or ¢ 6: Store the values in the corresponding preset number. 7: The settings can be performed individually for each item. (It

is not required to store all the values together.) 8: After storing the values, reset the unit to exit from the

adjustment mode. The values set in the EEPROM will be

read during the resetting. 9: When the band is switched, there may be cases in which

the preset number being displayed does not coincide with

the stored setting value. To check this , be sure to recall the

preset number after you switch the band.

Notes

1: The items which are not stored will be set to the default

values. 2: Once a value is stored in memory, the value will always be

used later.

(It is not allowed to modify the setting values by switching

the destination type.)

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